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  cold
    STUDY FOR THE KEY TECHNOLOGY OF THE CONTROL SYSTEM FOR THE IGC650HCW COLD STRIP ROLLING MILL
    IGC650HCW带轧机控制系统关键技术研究
短句来源
    Research on Intelligent Control and Recognition of Flatness for Cold Strip Mill
    带轧机板形智能识别与智能控制研究
短句来源
    Modeling and Simulation and Research on Robust Control for Speed System of Tandem Cold Rolling Mill
    连轧机速度系统建模仿真及鲁棒控制研究
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    Research on Intelligent Analysis System for Cold Extrusion Process and Fatigue Life of Automobile Part
    汽车件的挤压工艺与疲劳寿命智能分析系统的研究
短句来源
    Test on the effect of preliminary cold twist on the creep character of heat resistant alloy ㄌ10ㄒ2ワ
    预加扭对抗热合金钢ㄌ10ㄒ2ワ蠕变性质的影响的实验
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  cooling
    STRENGTH AND FRACTURE BEHAVIOR OF LOW CARBON Mn-Nb STEEL AFTER CONTROLLED ROLLING AND RAPID COOLING
    低碳锰铌钢控制轧制及轧后快复相组织的强度及断裂行为
短句来源
    STUDY OF CONTROLLED ROLLING AND CONTROLLED COOLING FOR LOW CARBON STEEL CONTAINING NIOBIUM
    含铌低碳钢控制轧制及轧后快的研究
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    Microstructure and Properties of 18Cr2Ni4WA Steel under Different Cooling Rates
    18Cr2Ni4WA钢不同速下的组织和性能——兼论获得良好综合性能的淬火方法
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    The observation and control of an abnormal structure in 20CrMnMo steel after carburizing and air cooling
    20crMnMo钢渗碳空反常组织及其控制
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    AN INTERNAL FRICTION PEAK DUE TO DEEP COOLING INDUCED MARTENSITE IN 18-8 TYPE STAINLESS STEEL
    18-8型奥氏体不锈钢深诱发马氏体的内耗峰
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  “冷”译为未确定词的双语例句
    Theoretical Research on Mechanism of Magnetic Phase Transition for Room Temperature Magnetic Refrigeration GdSiGe Alloys and Their Nano-calculations
    室温磁致GdSiGe系合金的磁相变机理的相关理论研究及纳米化计算
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    SOME STRUCTURAL CHANGES IN THE TEXTURE OF THE COLD-DRAWN COPPER WIRE
    拔铜线之织构变化
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    Automatic Control Mathematical Model of Pure Bending Cold-frame Bender
    纯弯曲肋骨弯机自动控制数学模型
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    Heat Treatment and Strength-Ductility of Cr12MoV Steel Used for Cold-Working
    作模具钢Cr12MoV的热处理和强韧性
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    FRACTURE-MECHANICS ANALYSIS OF COLD-DRAWN Si-Cr VALVE STEEL
    拉Si-Cr气阀钢的断裂力学分析
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  cold
Evaluation of the efficacy of 99mTc-labeled ascorbic acid on common cold-cough drugs in rats
      
Because of this, people have been ready to embrace simplistic approaches to cold treatment, such as vitamin C and zinc.
      
Ascorbic acid (vitamin C) is mostly administrated together with cough-cold drugs.
      
The aim of this study was to investigate the effect of cough-cold drugs on the uptake of ascorbic acid using 99mTc-ascorbic acid (99mTc-AA) in male albino Wistar rats.
      
The present data show that vitamin C might be more effective for the treatment of common cold when coadministered with PPA compared to with CPR, with APAP, or alone.
      
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  cooling
Compound 3 exhibited the enchased texture of a smectic liquid crystal from 209.4°C to 219.5°C on heating, while 2 exhibited a liquid crystalline phase from 87.4 to 83.2°C on cooling.
      
The model adopted two exponential equations to calculate the martensite fractions for cooling and heating, respectively.
      
In this paper, the technical method of cooling quench medium with air-cooler in the process of bearing quenching is introduced.
      
In the application of knife-edge technique, the temperature of atoms through laser cooling was measured.
      
Results indicate that, after atoms are emitted from an atomic oven, the longer the atoms move, the worse the distribution of the atomic beam shows, regardless the laser cooling is taken or not.
      
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The approach to magentic saturation in the cases of iron, nickel, and a number of iron-cobalt alloys at various temperatures has been studied in the range of field from a few hundred to 6,000 oersteds. It has been found that for annealed and moderately cold-worked specimens the differential susceptibility can be represented fairly accurately by a formula of the form

本工作依据微分磁化率的观测,以研究铁、镍、和几种铁钴合金在室温和高温下的“趋近饱和”现象。由实验结果得知,在数百到6000奥斯特的磁场下 微分磁化率和磁场强度的关系可用下式表出: (I/H)_T=A/H~2+2B/H~3+C/H~(1/2)+D,式中I表磁化强度,H表磁场强度,T表温度。在室温附近,式中末两项比前两项小得多,所以末两项的总值可以约略用一常数来代替;但在高温下就不然了。如果将一曾经驯炼的试品逐步加以作 则系数A和B最初跟作程度作跳跃式的增加;但对于经过剧烈作的试品上式就不适用。在驯炼状态下,A和B跟温度的上升而减小;到消失时温度还相当低于居里点。因本实验中所得数据的准确度不够所以不能依据它们来确定D的值;但如果将D略去而计算系数C的值,则可以确定到九成。C的数量级和它跟温度变化的情形大致是和Holstein和Primakoff的理论相符的 系数B和“磁晶各向异性”系数K的平方成正比;但用B的实验值和B的理论式比较而算得的K_1则和从单晶体观测所得的K_1只有数量级的符合。

~~

本文叙述和讨论了沸腾钢和铁静钢钢三中板机械性能的系统研究和初步生产试验的经过和结果. 在初步生产试验中,证明了控制加工温度、压下规程、却速度和进行低温回火可以提高钢三中板的机械性能和弯性能. 在系统的研究中,找出了钢三中板的机械性能和弯性能与其显微结构和晶粒度之间的关系,以及进一步了解了原始奥氏体晶粒度和却速度对於成品的显微结构和晶粒度的影响.如果原始奥氏体晶粒很大(1号或以上),则成品的晶粒也很粗大,且易生成魏氏组织,对降伏强度和弯性能都有不良的影响;反之,如果奥氏体晶粒细小(6号或更小),则易生成细小均匀和等轴的成品晶粒,提高了成品的机械性能和弯性能;在相变期间却速度过低便易生成带状组织,对各种机械性能和弯性能都有不良的影响. 在系统的研究中并着重研究了奥氏体晶粒度在热加工过程中所发生的变化.实验结果指出,钢三的奥氏体晶粒经过加工后发生细化,但随着保温时间的增加又重新长大.奥氏体晶粒细化的程度主要决定於未加工前的晶粒大小和加工量,长大的程度则主要决定於保温时间、加工量和温度.因此在多次重复的热加...

本文叙述和讨论了沸腾钢和铁静钢钢三中板机械性能的系统研究和初步生产试验的经过和结果. 在初步生产试验中,证明了控制加工温度、压下规程、却速度和进行低温回火可以提高钢三中板的机械性能和弯性能. 在系统的研究中,找出了钢三中板的机械性能和弯性能与其显微结构和晶粒度之间的关系,以及进一步了解了原始奥氏体晶粒度和却速度对於成品的显微结构和晶粒度的影响.如果原始奥氏体晶粒很大(1号或以上),则成品的晶粒也很粗大,且易生成魏氏组织,对降伏强度和弯性能都有不良的影响;反之,如果奥氏体晶粒细小(6号或更小),则易生成细小均匀和等轴的成品晶粒,提高了成品的机械性能和弯性能;在相变期间却速度过低便易生成带状组织,对各种机械性能和弯性能都有不良的影响. 在系统的研究中并着重研究了奥氏体晶粒度在热加工过程中所发生的变化.实验结果指出,钢三的奥氏体晶粒经过加工后发生细化,但随着保温时间的增加又重新长大.奥氏体晶粒细化的程度主要决定於未加工前的晶粒大小和加工量,长大的程度则主要决定於保温时间、加工量和温度.因此在多次重复的热加工过程中,各次的加工量对於细化奥氏体晶粒便有了积累作用.每次加工之间的间隔时间愈短,积累作用也就愈显著.如果在轧钢过程中,缩短了各道次之间的间隔时间。增加了压下率,並在停轧后使钢板迅速却到相变点,便可能得到转变前的细小的奥氏体晶粒.

The effect of hot working on the graphite formation in 1.1—1.2% carbon toolsteels during subsequent annealing was investigated.Specimens were heated in air to1050℃ for 10 minutes,cooled in a second furnace to the forging temperature,forged rapidly to give reductions in height between 0—40%,air-cooled,and annealed for16 hours at 700℃.Graphite was determined by chemical analysis.It was foundthat:1.Austenitizing in air between 870°and 1050℃ followed by air cooling causedthe formation of graphite during subsequent...

The effect of hot working on the graphite formation in 1.1—1.2% carbon toolsteels during subsequent annealing was investigated.Specimens were heated in air to1050℃ for 10 minutes,cooled in a second furnace to the forging temperature,forged rapidly to give reductions in height between 0—40%,air-cooled,and annealed for16 hours at 700℃.Graphite was determined by chemical analysis.It was foundthat:1.Austenitizing in air between 870°and 1050℃ followed by air cooling causedthe formation of graphite during subsequent annealing.The amount of graphiteincreased with increasing austenitizing temperature.Precipitation of graphite occurredalong the austenite grain boundary.2.Hot working at various temperatures increased the tendency of graphitizationduring subsequent annealing.The amount of graphite formed was smallest whenthe specimens were forged at 870℃ and increased with increasing or decreasingtemperature.3.Slow cooling after the specimens had been heated to or hot worked at hightemperatures reduced the degree of graphitization,provided that free cementite wasabsent during hot working.4.Forging during continuous cooling removed the effect of previous heatingor hot working until the temperature was sufficiently low to produce free cementiteduring forging.Forging during cooling gave minimum amount of graphite whenthe forging was interrupted between 820°and 870℃.A possible explanation to account for the phenomena is suggested.

在热加工过程中,加热及加工温度对1.1—1.2%碳钢在加热或加工后空再进行球化退火时,渗碳体分解为石墨的作用有重要的影响。在奥氏体状态870℃以上,停止加工的温度愈高,以后石墨的析出作用也愈严重。高温加工后缓或在低温加工可以减轻石墨化的作用。

 
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